This Carlisle 4501323 Flo-Pac fine floor sweep with 18"-long base has lightly crimped flagged bristles that are resistant to matting and clear fine particles from smooth, hard surfaces. The base is made of wood and has two threaded holes for use with a handle (sold separately). The bristles are 3" long, gray, and made of polypropylene, which is resistant to most acids and solutions, petroleum products, and water.Carlisle manufactures food service equipment and supplies and sanitary maintenance tools and supplies for commercial, industrial, and institutional facilities. The company, founded in 1954, is headquartered in Oklahoma City, OK.